Power-transmitting means for motor-vehicles.



T. H. MILLINGTON. POWER TRANSMITTING MEANS FOR MOTOR VEHICLES.l

APPLICATION FILED MAYH. |916.

f Pafented'July 30, 191s.

Amm

essi Avy/meets cor" si Ares! refrnnr oFFijoE.'

PQWERTRSMTTING MEANS FQR MOTOR-VEHICLES.

i newness.

specification ef Leiters raient. patetgea'luly 30, 1918. Y y

Application filed Mey 17, 1916. ,Serial No. 98,099.

To all 'whom t may concern:

Be it known Vthat l, THEODORE H. MIL- LINGTON e citizen o1 the UnitedStates residing et lVinnetke, Cook county, and' State s of. illinois,have.- invented and discovered certa-in new and useful improve!nentsv inPcWer-Trcnsmitting Means :'r'or Motorifehicles, of which thefollowing'is a. specilication.

tion with en arrangement which obtains e balanced-disposition of thevarious units of 1 the cer with respect to one another and 'also ot' thepertsof such oni s,

With this object in View, my invention is embodied in preferable forniin the errengenient end construction hereinafter described endillnstrated in the accompanying drewings,

lfnthese drawings, Figure l is e top pien view, partly in section, ofthe lchcsis of e motor cnr showing my improvement applied thereto; Fig.2, e side view in elevetion; Fig. 3, a; horizontal enlergeddetail.section of the main diierentia-l constituting one of the essentialfeatures of the invention and Fig. 4, an enlarged det-eil horizontalsection of one of the individuel differentials for the transmissionshafts on one side of the t chassis.

rlhe invention relates particularly to e four Wheei drive motor vehicle.Referring to the dre-Wings, l is c, chassis, 2 the engine, end 3 thechengespeed transmission niechlov snisin. v

The engine is mounted on the centra-l lonrgit-dinnl line of the chassisand its shaft eX- Y tends rearwardly in such line and is part l of or iscomiected by and through the transt mission, to e driving shaft 5,extending into the diilferentiel cese 4. The shaft 5 is prcl U otherside of the vehicle. Universel Jomts erebly in direct continuation ofthe engine shaft end in the central longitudinal line ci the chassis andpreferably also extends substentielly inthe same horizontal plane withthat of the axles. l

The shaft 5 which is vthe mein driving element or' propeller ot' thedifferential, carries a radial Spider ll, which hais mounted there- 655on e wir of idler bevel goers l2, which lilly invention relates, topower transmitting ineens for motor driven vehicles end its mesh withthe bevel gears 13 and 14, and y which carry. the sleeves 15 and 16respectively which are journaled` on' e sleeve 9'. The sleeve 15 has xedthereto asprocket `Wheel 17 to which isconnectedv e chain 18, 60v

which leeds oli tothe transmission shafts on one side of the vehicle todrive the same. Similarly the sleeve'l is provided with a. sprocketwheel 19 adapted to engage and drive` the sprocket chain 2O which leadsto- 65 the transmission shafts on the opposite side, oft-.he vehicle.While bevel gears are shown as the connecting elementso'f thedierential, other forms of connecting elemen might he employed. A 70 Thesprocket chain -18 engages a. sprocket `Wheel 22 mounted on a' spideradapted to carry bevel' gears Jvhjch are adapted to mesh with a gear 23'fixed on a transmission shaft ltextending to the drive mechanism of oneof the .front wheels. The bevel Wheel-fixed to the sprocket 22 alsomeshes with a. bevel `wheel 25 fixed on e transmission shaft' 26extending rearwardly` to .the driving" inechenisin of a. rear drivingWheel and in 8 0 continuation of the front transmission shaft. Themechanism. consisting of. the wheels 22, end 25, thus constitute e,d'ii'erential which is' adapted to drive transmissionl shafts connectedto the front end rear wheel on the sume side of the vehicle. Theseshafts end their connections end driving elements are identicalinconstruction and therefore, interchangeable and are also' identical in"lconstruction with similar transmission shafts;A .90 employed to drivethe front andreer wheels on the opposite side of the vehicle. Interposedin the line ci" the transmission shaft 2e, between the body proper ofthe seme and the differential is a. universal joint 27 andge 95 similaruniversal joint 28 is provided for' the other shaft 26.-

The sprocketchain 20' leeds Vto and drives the driving element ofadiierential mechensm 29, the construction of which is idenf tical withthat described with-respect to the -30 end 31 are interposed betweenthis differential and the respective trensxnisslon shafts 32 and 33,lending to the front Wheel and the' 165 l rear Wheel.

The shaft 5 is adiipted to be connected b a coupling 3e with e shaft 35which exten rearwardly in longitudinal continuation ofA the shaft andthe engine shaft, and in the 100 sal joint 36. The Lshaft 35 extendsrear wardly to driving mechanism 37 adapted to' line of such shaft35.i's'interposed a univerdrive a shaft .38 connected by a suitablegeaning'39 to a ,drumlor winch 40, the'purpose of which is to'serveas apower driven windlass to assist in raising or lifting the truck fromditches and which may be employed for other power applying purposes.

` The sleeve 9' is` loosely mounted on the ower shaft 5 and a'lclutch 41is interposed etween the main section of the shaft 5 and .the forwardend of said sleeve whereby said sleeve andshaft may be connected ordisconnected for the purpose of driving or releasing the differential asdesired, the purpose of which arrangement is to enable the winch tobe'operated without driving the differential mechanism.

.Withthe above construction and arrangement it will be. seen that`the.driving and driven elements of the differentialunit contained in thecasing l are concentric to the r axis of the driving shaft 5 and aninterior drive from the driving element outward to the driven elementsis obtained, thus avoidingla peripheral drive. construction such. as isusually employed with the consequent avoidance of the necessity ofoff-setting the motor or the transmission shafts from the centrallongitudinal line of the chassis to 4accommodatethem to'such usualarrangement of the differential elements, which offsettingdisposition ofthe units results either in the unbalancing of the car or in4 aninconvenient and unsymmetrical,disposition of the -parts to obtainbalance.

With four transmission shafts leading to the four wheels of the vehicle,an arrange- I claim is :-l

yisis ment is provided in which the shaft units are-identical andinterchangeable, thereby greatly facilitating the manufacture of suchparts and lessening the cost of such manufacture and increasing thefacility of repair. Having thus described my invention, what 1. -Inpower transmitting means for motor vehicles in combination with adifferen.

tial' mechanism, a power driving shaft therefor,',and transmissionshafts parallelwith said power shaft at the sides of the chassisAdriving the four wheels of the vehicle, said differential having itsdriving and driven elements arranged concentricof said power driving.shaft, and drivin connections between said differe'l tial andl thetransmission shaftsmk A 'f2.'In' lpower transmitting means forinotorvehicles, in combinat-ion with a differential mechanism having ahorizontal power driving s hafti'a'd having its driving and said lshaftI lines'sparall driven elements' mounted concentrically of powertransmitting el to'tliepower shaft and on each side of the power driving'shaft leading to means. in 1 eEsTAvAiLAeLE COF power transmittingmeans.

3. Inpower transmitting means for motor vehicles in combination with a.diffmentlie front andirear wheels and means of connection between thedifferential and said side tial mechanism having a horizontal ,powerdriving shaftfand having its drivin and driven elements mountedconcentrica ly of said power driving shaft, interchangeable homologoustransmission shafts on each side of the powerl driving shaft andparallel therewith leading 'separately to different.

wheels .of the vehicle at the4 front and rear thereof, and means ofdriving connectionbetween the differential and said side transmissionshafts..

4:. In a power transmitting means for mol tor vehicles in combinationwith a' direct motor driven shaft, a main dierential mechanism driventhereby and having its driving and driven elements concentric of themotor driven shaft, and separate hom'ologous transmission shafts for thewheels of thel vehicle `parallel with the longitudinal axis of thechassis, and differentials between the said shafts for the wheels oneach side of the vehicle and means. of connection 'betweenthe maindi'erential and said shaft differentials.

5. In power transmitting means for motor vehicles, in combination with adriving shaft parallel with the longitudinal axis of the chassis, a maindifferential mechanism, said differential having the, driving and drivenelements thereof arranged concentrically' of said, shaft',interchangeable transmission shafts A.parallel with `the driving shaftand corresponding to the front and rear wheels of the vehicle andadapted to drive the same and differential mechanisms between the frontand rear shafts on each side and means rear wheels of the vehiclearranged sym--v metrically of said driving shaft and havinginterchangeable constructions and differential mechanisms between thefront and rear shafts of the pair on each side, and driving i r'connections between the main differential and said side differentials. r

7. In. power transmitting means for motor vehicles in combination withan engine, a

horizontal power shaft, a main differential operable by said power shaftand having its p l driving and driven means arranged concentrictherewith, said shaft extending in BEST AVAILABLE COP.,

minnen y the central longienriine" ne orf chassis,

i four homologous transmission shafts peralon'eacli side of the vehicleoperatively oonnected with said 'main fliielential and an engine mountedsubsentinlly in lle central longitudinal line of iii-e @bassie 8. ln'power transmizing mechanism ior motor vehicles, in combination with envengine, .a horizontal l power shaft operated "lllxerefloni7 a, multipleclilerenaial having the driving sind driven elements thereof er-'renge'd concentrically o said driving shaft,

a plurality of identical iransmission shafts parallel with the powershaft and leading ,to the four Wheels of the vehicle and e difuferential for the pair of transmission shafts on each side of thevehicle, connecting menne between seid main dili'erenbiel and said sidedierentiele-1 e vowen rrensrninningv shaft leading rear-wer ly from iaenmn'dzen "ze iai substanzieiiy central of the chassis end means ofreleesa'ble coupling between said sliai'e end seid rii'erentiel.

9. En e motor vehicle, e d'iferential meehenism having e horizontalpower shaft, e sleeve thereof n differential mechanism having itsdriving and driven elements mounted on said sleeve concenfsrieall-y ofsaid power shaft and having its driven elements operetively oonneeieclwith driving wheels,en er'm tension o said power shaft arrangedliorzontnlly beyond tige diierenitiel, a clutch connecting the powershaft proper end said extension, n clutch between said sleeve and saidipower shaft proper, a Winch and driving oonneetions between saidextension and seid Winch. ,f f..

In Witness whereof, l have hereunto set my hand end seal atindianapolis, Indiana, this'Qth day of Mey, A. D. nineteen hundred andsini-een,

rnneeenn n. MILLINGTON. [n a.) Witnesses.:

H. .PL Deonrmn, @man Hime.

